package a01staticdemo2;

public class TestDemo {
    public static void main(String[] args) {
        int[] arr1={1,2,3,4,5};
        String str1 = ArrayUtil.printArr(arr1);
        System.out.println(str1);

        double[] arr2 ={1.5,3.7,4.9,5.8,6.6};
        double aver = ArrayUtil.getAverage(arr2);
        System.out.println(aver);
    }
}
